unit test 1 part 1

Question 1

mono culture

Answer 1

culivation of a single crop in a area

Question 2

pests

Answer 2

organisims that might compete with or damage crop species

Question 3

broad spectrum

Answer 3

a pesticide that is effective against many types of pest

Question 4

narrow spectrum

Answer 4

a pecsticide that is only effective against a few types of pest

Question 5

bio geo chemicals

Answer 5

water cycle carbon cycle nitrogen cycle

Question 6

issues and alternatives with pesticide use

Answer 6

effects on non target species and impact on food web and food chain we can reduce this by using organic farming

Question 7

organic farming

Answer 7

is when u use no pesticides

Question 8

trophic levels

Answer 8

greek term reffering to the level an organism feeds at

Question 9

ecological pyramid

Answer 9

ecological pyramid are used to descibe relationships between trophic levels

Question 10

what the spheres of the earth do

Answer 10

lithiosphere - the earths solid outer layer such as mountains ocean floors
hydrosphere- all of the earths water liquid an solid and gas form

Question 11

bio amplification

Answer 11

the increse in concentration of a substance such as a pesticide

Question 12

bio accumalation

Answer 12

the concentration of a substance such as a pesticide